The HYMAX GRIP’s patented universal teeth and hydraulic seal restrain all types of plastic and metal pipes and grip even harder when under stress. Joining pipes can move up to 4 degrees on each end without pipe pullout. The result: a watertight seal even in extreme temperature changes. Ready to use out of the box, the unit comes as a restraint coupling and as a flange adapter in diameter sizes of 4 to 12 in. Installers will appreciate the stab-fit and bold closure designs. Click here to watch a demonstration.